Tro, Chemistry: A Molecular Approach 5 Atmospheric Pressure water well application ± pressure is the force exerted over an area ± on average, the air exerts the same pressure that a column of water 10.3 m high would exert ± 14.7 lbs./in 2 ± so if our pump could get a perfect vacuum, the maximum height the column could rise is 10.3 m Area Force Pressure =

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